MySQL 9.3 Reference Manual Including MySQL NDB Cluster 9.3
The setup tables provide information about the current
instrumentation and enable the monitoring configuration to be
changed. For this reason, some columns in these tables can be
changed if you have the UPDATE
privilege.
The use of tables rather than individual variables for setup information provides a high degree of flexibility in modifying Performance Schema configuration. For example, you can use a single statement with standard SQL syntax to make multiple simultaneous configuration changes.
These setup tables are available:
setup_actors: How to initialize
monitoring for new foreground threads
setup_consumers: The
destinations to which event information can be sent and
stored
setup_instruments: The classes
of instrumented objects for which events can be collected
setup_objects: Which objects
should be monitored
setup_threads: Instrumented
thread names and attributes